967 resultados para China. Wai wu bu.


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Reissued : 2 ban ; Taibei : Xin wen feng chu ban gong si, Minguo 71 [1982]

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Reissued : 2 ban ; Taibei : Xin wen feng chu ban gong si, Minguo 71 [1982]

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Date from preface.

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Reissued: 2 ban ; Tai bei : Xin wen feng chu ban gong si, Min'guo 71 [1982]

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Reissued: 2 ban ; Tai bei : Xin wen feng chu ban gong si, Min'guo 71 [1982]

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Reissued: Chu ban ; Taibei : Xin wen feng chu ban gong si, Min'guo 68 [1979]

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Content page: Kangxi 47 nian [1708] xiu.

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On double leaves, oriental style, in 115 cases.

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An epidemiologic survey among four administrative villages around Poyang Lake, in Jiangxi Province, China (two experimental and two controls) is being conducted to determine if bovine infections are responsible for the persistence of human schistosomiasis transmission on Yangtze River marshlands. A previously published paper presented the experimental design and baseline data for humans and bovines. This paper presents basic data for the four villages using remote sensing, and baseline data for snails that includes geographic information systems and remote sensing technology to classify the areas of bovine grazing ranges and habitats suitable for snails. A new method for sampling Oncomelania snails in China is used to determine the distribution, density, and infection rates of snails throughout the grazing ranges from season to season over a four-year period. Hypothetically, treating bovines should reduce infection rates in snails to below the critical number necessary to maintain infections in man and bovines.